Jingle bells or ‘green’ bells? The impact of socially responsible consumption principles upon consumer behaviour at Christmas time

Socially responsible consumption (SRC) behaviours have progressed over the last few years and appear to show signs of a lasting trend. Situations of atypical consumption such as Christmas time, however, raise an important and as of yet unexplored question: What are the influences of unusual situations upon the relationship between people's socially responsible profile and their socially responsible purchase intentions (SRPI)? The objective of this article is thus to use the theory of planned behaviour (Ajzen, 1991 ) and environment‐based variables, called ‘atmospherics’, to answer to this question. A Web survey on a total sample of 301 Canadian consumers, shows that people's past SRC behaviours are positively related to their SRPI in unusual situations. Moreover, the atmosphere of the place consumers are situated in has a negative moderating influence upon this relationship. This result is explained by a change in people's attitude toward SRC. However, this negative moderating effect of atmosphere is contained and constrained by social desirability in the form of subjective norms on SRC and the level of behavioural control consumers perceive.     

Conspicuous Consumption and Social Segmentation

This paper develops the idea that conspicuous consumption has an impact on social segmentation, i.e., on the partition of the society into communities. Even though agents do not value conspicuous goods per se, they are competing in a signalling race in order to benefit from social interactions within a community. First, we study the equilibria of this model defining the optimal strategies and the equilibrium partition that characterizes pooling and separating equilibria. In a second step, as conspicuous consumption is a pure waste of money, we study a possible Pareto–improving taxation policy.     

OPTIMAL HIGH‐FREQUENCY TRADING IN A PRO RATA MICROSTRUCTURE WITH PREDICTIVE INFORMATION

We propose a framework to study optimal trading policies in a one‐tick pro rata limit order book, as typically arises in short‐term interest rate futures contracts. The high‐frequency trader chooses to post either market orders or limit orders, which are represented, respectively, by impulse controls and regular controls. We discuss the consequences of the two main features of this microstructure: first, the limit orders are only partially executed, and therefore she has no control on the executed quantity. Second, the high‐frequency trader faces the overtrading risk, which is the risk of large variations in her inventory. The consequences of this risk are investigated in the context of optimal liquidation. The optimal trading problem is studied by stochastic control and dynamic programming methods, and we provide the associated numerical resolution procedure and prove its convergence. We propose dimension reduction techniques in several cases of practical interest. We also detail a high‐frequency trading strategy in the case where a (predictive) directional information on the price is available. Each of the resulting strategies is illustrated by numerical tests.     

Public infrastructure,non‐cooperative investments,and endogenous growth

Two countries strategically invest in productive infrastructure within a general equilibrium model with endogenous growth. These public investments generate externalities. Dynamic analysis reveals that: (1) under constant returns, the two countries’ growth rates differ during the transition but are identical on the balanced growth path, (2) a country with decreasing returns can experience sustained growth provided that the other country grows at a positive constant rate, (3) cooperation does not necessarily lead to higher growth for each country, and it can increase or decrease the gap between countries’ growth rates depending on the countries’ consumption preferences regarding domestic and foreign goods.     

COMMUNITY MEMBERSHIP ASPIRATIONS: THE LINK BETWEEN INEQUALITY AND REDISTRIBUTION REVISITED*

This article studies how distributional tensions can act in many different ways depending on the social affinity between the different economic classes and their prospect of upward or downward mobility. We consider that socioeconomic group membership through its implied social interactions and peer effects is an important determinant of an individual's outcome. Agents, while voting on a social contract, take into account the consequences of their choice over their ex post belonging to a particular community. Thus, the endogenous sorting of the population into clusters may lead to a nonmonotonic relationship between inequality and the pressure for redistributive policies.     

Sticky prices, fair wages, and the co-movements of unemployment and labor productivity growth

This paper studies the co-movements of unemployment and labor productivity growth for the U.S. economy. Measures of co-movements in the frequency domain indicate that co-movements between variables differ strongly according to the frequency. First, long-term and business cycle co-movements are larger than short-term co-movements. Second, co-movements are negative in the short and long run, but positive over the business cycle. A New Keynesian model that combines nominal rigidity on the goods market (sticky prices) and real rigidity on the labor market (fair wages) is shown to be quantitatively consistent with the observed co-movements both in the long term and over the business cycle. However, the model fails to explain the short-term co-movements.     

How Income and Crowding Effects Influence the World Market for French Wines

Wine prices rose rapidly between 2001 and 2011 but have now stagnated. The growth phase could be explained by the increased demand from emerging markets, while the subsequent stagnation may result from the crowding effect caused by the entry of numerous new varieties onto the wine market. The generalised model of ideal variety proposed by Hummels and Lugovskyy combines these two elements, and focusing on French exporters, we find partial support for this explanation at the world level. A 1 per cent increase in GDP per capita (income effect) generated an increase in price of 1.13 per cent between 2001 and 2011. In contrast, a 1 per cent increase in market size (competition effect) reduced prices by 1.10 per cent over the same period. This paper goes further into the analysis of these effects by considering wine exports according to the mode of transport used and indirectly evaluates economies of scale when wine is exported by land, sea or air (via a gravity equation). Economies of scale are observed for transport by plane and ship but not for road. A 10 per cent increase in the value of wine exported by road (plane) leads to a rise (reduction) in transport costs of 0.5 per cent (19 per cent).     

The Dynamics of Technological Unemployment*

This article compares the short‐ and long‐run effects of technological progress on employment. It presents a simple model of frictional unemployment capturing the negative creative destruction effects of technological change on employment. In the long run, faster technological change accelerates job obsolescence, which reduces the equilibrium level of employment. But it is also shown to have short‐run positive and potentially important effects on employment. This tends to partially reconcile the ‘‘Schumpeterian'’ view of the effects of technological change on labor markets with facts such as the response of most OECD unemployment rates to the 1970s productivity slowdown.